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How to choose a photovoltaic inverter?

2023-01-18

Photovoltaic inverters generally choose outdoor type, adopt natural cooling method, high shell protection level (usually need to reach IP65), installation requires little environmental transformation, low cost; At the same time, because the inverter is installed outdoors, the impact of noise generated by the operation of the inverter on the user will be greatly reduced, but good equipment protection is required.

Generally, according to the requirements of the system to configure the corresponding power section of the inverter, the selected inverter power should match the maximum power of the photovoltaic cell array, generally select the rated output power of the photovoltaic inverter and the total input power is similar, (usually over-configuration control within 1.3), which can save costs.

On the other hand, the choice of inverter capacity can be optimized according to the installation conditions. If the installation site is not clear in the early stage of

design, the installation site should be selected as much as possible to achieve multi-channel independent power tracking, and if necessary, micro-inverter should

be selected to achieve maximum power tracking of smaller units, so as to ensure that the series and parallel mismatch caused by the site is not large enough or

irregular enough.